
3 
 
INTRODUCTION 
This manual provides instructions for the use and maintenance of Allegro Industries Com-pax-ial Blowers. You must read 
and understand this manual and be trained in the proper use of the equipment before using it in a contaminated 
atmosphere. 
 
There are many federal, state and local codes and regulations governing sales, construction, installation and/or use of 
products for certain purposes, which may vary. Allegro cannot be responsible for how the products are used and installed. 
Before purchase and use, the buyer must review the product application, and be sure that the product installation and use 
will comply with those regulations. 
 
For more information and assistance on Allegro Industries products, contact Allegro Technical support toll free at 1-800-
622-3530 or e-mail at: techsvc@allegrosafety.com 
 DESCRIPTION 
Allegro Com-pax-ial Plastic Blowers are designed to offer high output CFM in easy-to-use portable, air-over-motor 
configurations with a quick-connect canister ducting system for either ventilation (output side) or extraction (input side) of air 
without the use of tools. They are available in outputs from 816 up to 3200 CFM of free air. Blowers are available in a 
range of styles, sizes and power. For Explosion-Proof Blowers, the receptacle should be installed by qualified personnel 
and is sold separately. 
 
9533 8” AC Plastic Blower 
9533-AU 8” 220V/50Hz Plastic Blower (Australian Plug) 
9533-E 8” 220V/50Hz Plastic Blower 
9533-15 8” AC Plastic Blower w/15’ ducting & canister 
9533-15AU 8” 220V/50Hz Plastic Blower w/15’ ducting & canister (Australian Plug) 
9533-15E 8” 220V/50Hz Plastic Blower w/15’ ducting & canister 
9533-25 8” AC Plastic Blower w/25’ ducting & canister 
9533-25AU 8” 220V/50Hz Plastic Blower w/25’ ducting & canister (Australian Plug) 
9533-25E 8” 220V/50Hz Plastic Blower w/25’ ducting & canister 
9533-50 8” AC Plastic Blower w/50’ ducting & canister 
9533-50E 8” AC Plastic Blower w/50’ ducting & canister (220V, 50Hz) 
9536 8” 12VDC Plastic Blower 
9536-15 8” 12VDC Plastic Blower w/15’ ducting & canister 
9536-25 8” 12VDC Plastic Blower w/25’ ducting & canister 
9536-50 8” 12VDC Plastic Blower w/50’ ducting & canister 
9538 8” AC Explosion Proof Plastic Blower 
9538-E 8” AC Explosion Proof Plastic Blower (220V, 50 Hz) 
9538-15 8” AC Explosion Proof Plastic Blower w/15’ ducting & canister 
9538-15E 8” AC Explosion Proof Plastic Blower w/15’ ducting & canister (220V, 50 Hz) 
9538-25 8” AC Explosion Proof Plastic Blower w/25’ ducting & canister 
9538-25E 8” AC Explosion Proof Plastic Blower w/25’ ducting & canister (220V, 50Hz) 
9538-50 8” AC Explosion Proof Plastic Blower w/50’ ducting & canister 
9538-50E 8” AC Explosion Proof Plastic Blower w/50’ ducting & canister (220V, 50Hz) 
9543 12” AC Plastic Blower 
9543-AU 12” 220V/50Hz Plastic Blower (Australian Plug) 
9543-E 12” AC Plastic Blower (220V, 50Hz) 
9543-15 12” AC Plastic Blower w/15’ ducting & canister 
9543-15AU 12” 220V/50Hz Plastic Blower w/15’ ducting & canister (Australian Plug) 
9543-15E 12” AC Plastic Blower w/15’ ducting & canister (220V, 50Hz) 
9543-25 12” AC Plastic Blower w/25’ ducting & canister 
9543-25AU 12” 220V/50Hz Plastic Blower w/25’ ducting & canister (Australian Plug) 
9543-25E 12” AC Plastic Blower w/25’ ducting & canister (220V, 50Hz) 
9546 12” DC Plastic Blower 
9546-15 12” DC Plastic Blower w/15’ ducting & canister 
9546-25 12” DC Plastic Blower w/25’ ducting & canister 
9548 12” AC Explosion Proof Plastic Blower 
9548-E 12” AC Explosion Proof Plastic Blower (220V, 50 Hz) 
9548-15 12” AC Explosion Proof Plastic Blower w/15’ ducting & canister 
9548-15E 12” AC Explosion Proof Plastic Blower w/15’ ducting & canister (220V, 50 Hz) 
9548-25 12” AC Explosion Proof Plastic Blower w/25’ ducting & canister